Chemistry:7005 aluminium alloy
From HandWiki
7005 is an aluminium alloy used bicycle frames, due to its relative ease of welding it does not require expensive heat treating - it is however harder to form making manufacture more challenging. It has an Ultimate Tensile Strength of 350MPa, a Fatigue Strength of 150MPa and a density of 2.78g/cm³ [1] compared to a Ultimate Tensile Strength of 310MPa and Fatigue Strength of 96.5 MPa and a density of 2.70g/cm³ for 6061 aluminium alloy. [2]
It does not need to be precipitation hardened, unlike 6061, but can be cooled in air.[3]
Specific forms of AL 7005 include:
- 7005-O
- 7005-T5
- 7005-T53
- 7005-T6
Chemical composition
The alloy composition of 7005 is:
- Aluminium 91.0% - 94.7%
- Chromium 0.06% - 0.20%
- Copper <=0.10 %
- Iron <=0.40 %
- Magnesium 1.0% - 1.80%
- Manganese 0.20% - 0.70%
- Silicon <=0.35%
- Titanium 0.010% - 0.060%
- Zinc 4.0% - 5.0%
- Zirconium 0.080% - 0.20%
- Other, total <= 0.15%
References
- ↑ "matweb Aluminium 7005". http://www.matweb.com/search/DataSheet.aspx?MatGUID=34c308934f7a4be589a80ecbee94406e.
- ↑ "matweb Aluminium 6061-T6". http://www.matweb.com/search/datasheet_print.aspx?matguid=1b8c06d0ca7c456694c7777d9e10be5b.
- ↑ Davis, Joseph R. (1993) (in en). Aluminum and Aluminum Alloys. ASM International. ISBN 9780871704962. https://books.google.com/books?id=Lskj5k3PSIcC&pg=PA430&lpg=PA430&dq=7005+air+hardening&source=bl&ots=FtA2bgbBeU&sig=i7C1UrpfCgsHw5b0z5Vr_1IjAL0&sa=X&ei=O7czUKU6ycfRBaP0gPAF&ved=0CEsQ6AEwCQ#v=onepage&q=7005%20air%20hardening&f=false.
- ↑ "Make it From". Archived from the original on 2015-11-09. https://web.archive.org/web/20151109040400/http://www.makeitfrom.com/material-properties/7005-AlZn4.5Mg1.5Mn-A97005-Aluminum/.
- ↑ "Archived copy". Archived from the original on 2014-04-27. https://web.archive.org/web/20140427154331/http://www.matweb.com/search/DataSheet.aspx?MatGUID=34c308934f7a4be589a80ecbee94406e&ckck=1. Retrieved 2012-08-26.
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